One Piece, Naruto, Bleach, Attack on Titan, D-Frag!, Soul Eater, Nisekoi, A Certain Scientific Railgun, Deathnote are all good titles, very popular that all ages can read "maybe not so much Attack on Titan but it's very popular right now."

Gangsta, Terraformars, Berserk, Black Lagoon are all really good titles but they are for more mature audiences.